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參數資料
| 型號： | MAX764 |
| 廠商： | Maxim Integrated Products, Inc. |
| 英文描述： | -5V/-12V/-15V or Adjustable, High-Efficiency, Low IQ DC-DC Inverters |
| 中文描述： | -5V/-12V/-15V或可調、高效率、低IQ、DC-DC反相器 |
| 文件頁數： | 1/12頁 |
| 文件大?。?/td> | 132K |
| 代理商： | MAX764 |
_______________General Desc ription
The MAX764/MAX765/MAX766 inverting switching regu-
lators are highly efficient over a wide range of load cur-
rents, delivering up to 1.5W. A unique, current-limited,
pulse-frequency-modulated (PFM) control scheme com-
bines the benefits of traditional PFM converters with the
benefits of pulse-width-modulated (PWM) converters.
Like PWM converters, the MAX764/MAX765/MAX766 are
highly efficient at heavy loads. Yet because they are PFM
devices, they use less than 120μA of supply current (vs.
2mA to 10mA for a PWM device).
The input voltage range is 3V to 16V. The output volt-
age is preset at -5V (MAX764), -12V (MAX765), or -15V
(MAX766); it can also be adjusted from -1V to -16V
using two external resistors (Dual Mode
TM
). The maxi-
mum operating V
IN
- V
OUT
differential is 20V.
These devices use miniature external components; their
high switching frequencies (up to 300kHz) allow for less
than 5mm diameter surface-mount magnetics. A stan-
dard 47μH inductor is ideal for most applications, so no
magnetics design is necessary.
An internal power MOSFET makes the MAX764/MAX765/
MAX766 ideal for minimum component count, low- and
medium-power applications. For increased output drive
capability or higher output voltages, use the
MAX774/MAX775/MAX776 or MAX1774, which drive an
external power P-channel MOSFET for loads up to 5W.
________________________Applic ations
LCD-Bias Generators
Portable Instruments
LAN Adapters
Remote Data-Acquisition Systems
Battery-Powered Applications
____________________________Features
o
High Efficiency for a Wide Range of Load Currents
o
250mA Output Current
o
120μA Max Supply Current
o
5μA Max Shutdown Current
o
3V to 16V Input Voltage Range
o
-5V (MAX764), -12V (MAX765), -15V (MAX766),
or Adjustable Output from -1V to -16V
o
Current-Limited PFM Control Scheme
o
300kHz Switching Frequency
o
Internal, P-Channel Power MOSFET
______________Ordering Information
Ordering Information continued on last page.
* Dice are tested at T
A
= +25°C, DC parameters only.
**Contact factory for availability and processing to MIL-STD-883.
__________________Pin Configuration
M
-5V /-12V /-15V or Adjustable,
High-Effic ienc y, Low I
Q
DC-DC Inverters
________________________________________________________________ Maxim Integrated Products
Call toll free 1-800-998-8800 for free samples or literature.
1
1
2
3
4
8
7
6
5
LX
V+
V+
GND
REF
SHDN
FB
OUT
MAX764
MAX765
MAX766
DIP/SO
TOP VIEW
GND
MAX764
SHDN
LX
OUT
ON/OFF
REF
47μH
OUTPUT
-5V
INPUT
3V TO 15V
V+
FB
__________Typic al Operating Circ uit
19-0176; Rev 0; 6/94
PART
MAX764
CPA
MAX764CSA
MAX764C/D
MAX764EPA
MAX764ESA
MAX764MJ A
MAX765
CPA
MAX765CSA
MAX765C/D
MAX765EPA
MAX765ESA
MAX765MJ A
0°C to +70°C
-40°C to +85°C
0°C to +70°C
0°C to +70°C
TEMP. RANGE
PIN-PACKAGE
8 Plastic DIP
8 SO
Dice*
8 Plastic DIP
8 SO
8 CERDIP**
8 Plastic DIP
8 SO
Dice*
8 Plastic DIP
8 SO
8 CERDIP**
-40°C to +85°C
-55°C to +125°C
0°C to +70°C
0°C to +70°C
-40°C to +85°C
0°C to +70°C
-40°C to +85°C
-55°C to +125°C
Evaluation Kit
Available
相關PDF資料 |
PDF描述 |
|---|---|
| MAX766CPA | -5V/-12V/-15V or Adjustable, High-Efficiency, Low IQ DC-DC Inverters |
| MAX766CSA | -5V/-12V/-15V or Adjustable, High-Efficiency, Low IQ DC-DC Inverters |
| MAX766EPA | -5V/-12V/-15V or Adjustable, High-Efficiency, Low IQ DC-DC Inverters |
| MAX767EAP | 5V-to-3.3V, Synchronous, Step-Down Power-Supply Controller |
| MAX767TCAP | 5V-to-3.3V, Synchronous, Step-Down Power-Supply Controller |
相關代理商/技術參數 |
參數描述 |
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| MAX7645ACPP | 功能描述:數模轉換器- DAC RoHS:否 制造商:Texas Instruments 轉換器數量:1 DAC 輸出端數量:1 轉換速率:2 MSPs 分辨率:16 bit 接口類型:QSPI, SPI, Serial (3-Wire, Microwire) 穩定時間:1 us 最大工作溫度:+ 85 C 安裝風格:SMD/SMT 封裝 / 箱體:SOIC-14 封裝:Tube |
| MAX7645ACPP+ | 功能描述:數模轉換器- DAC 12-Bit Buffered DAC RoHS:否 制造商:Texas Instruments 轉換器數量:1 DAC 輸出端數量:1 轉換速率:2 MSPs 分辨率:16 bit 接口類型:QSPI, SPI, Serial (3-Wire, Microwire) 穩定時間:1 us 最大工作溫度:+ 85 C 安裝風格:SMD/SMT 封裝 / 箱體:SOIC-14 封裝:Tube |
| MAX7645ACPP+T | 功能描述:數模轉換器- DAC 12Bit Buffered Multiplying DAC RoHS:否 制造商:Texas Instruments 轉換器數量:1 DAC 輸出端數量:1 轉換速率:2 MSPs 分辨率:16 bit 接口類型:QSPI, SPI, Serial (3-Wire, Microwire) 穩定時間:1 us 最大工作溫度:+ 85 C 安裝風格:SMD/SMT 封裝 / 箱體:SOIC-14 封裝:Tube |
| MAX7645ACWP | 功能描述:數模轉換器- DAC RoHS:否 制造商:Texas Instruments 轉換器數量:1 DAC 輸出端數量:1 轉換速率:2 MSPs 分辨率:16 bit 接口類型:QSPI, SPI, Serial (3-Wire, Microwire) 穩定時間:1 us 最大工作溫度:+ 85 C 安裝風格:SMD/SMT 封裝 / 箱體:SOIC-14 封裝:Tube |
| MAX7645ACWP+ | 功能描述:數模轉換器- DAC 12-Bit Buffered DAC RoHS:否 制造商:Texas Instruments 轉換器數量:1 DAC 輸出端數量:1 轉換速率:2 MSPs 分辨率:16 bit 接口類型:QSPI, SPI, Serial (3-Wire, Microwire) 穩定時間:1 us 最大工作溫度:+ 85 C 安裝風格:SMD/SMT 封裝 / 箱體:SOIC-14 封裝:Tube |
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